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Find the balance at the end of 4 years if 1000 is deposited at the rate of

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry